Hierarchy of Certain Types of DNA Splicing Systems
A Head splicing system (H-system)consists of a finite set of strings (words) written over a finite alphabet, along with a finite set of rules that acts on the strings by iterated cutting and pasting to create a splicing language. Any interpretation that is aligned with Tom Head’s original idea is o...
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| Main Authors: | , , |
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| Format: | Article |
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World Scientific Publishing
2012
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| Online Access: | http://dx.doi.org/10.1142/S2010194512005314 http://dx.doi.org/10.1142/S2010194512005314 http://umpir.ump.edu.my/2461/4/fist-2012-yuhani.pdf |
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| Summary: | A Head splicing system (H-system)consists of a finite set of strings (words) written over a finite alphabet, along with a finite set of rules that acts on the strings by iterated cutting and pasting to create a splicing language. Any interpretation that is aligned with Tom Head’s original idea is one in which the strings represent double-stranded deoxyribonucleic acid (dsDNA) and the rules represent the cutting and pasting action of restriction enzymes and ligase, respectively. A new way of writing the rule sets is adopted so as to make the biological interpretation transparent. This approach is used in a formal language- theoretic analysis of the hierarchy of certain classes of splicing systems, namely simple, semi-simple and semi-null splicing systems. The relations between such systems and their associated languages are given as theorems, corollaries and counter examples.
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